The present invention relates to a beam-based multi-connection communication method, a terminal device, and a network device. The method may include the following: Based on a multi-beam connection established between a terminal and a base station, the terminal further selects a dedicated message beam from a common message range of the base station based on a measurement result of an uplink pilot, or the base station selects a dedicated message beam from a common message range of the base station based on a measurement result of a downlink pilot; and the terminal or the base station chooses to delete at least one established beam connection. By selecting and deleting a multi-beam connection between the terminal and the base station, a high-quality beam connection is maintained, and interruption of data transmission between the base station and terminal is avoided, thereby ensuring normal communication between the base station and the UE.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A beam-based multi-connection communication method, comprising: receiving, by a terminal device via a first beam of the terminal device and a plurality of sub-beams of a network device, downlink reference signals from the network device; measuring, by the terminal device, signal quality of the plurality of sub-beams of the network device based on the downlink reference signals; based on measuring the signal quality of the plurality of sub-beams of the network device, determining, by the terminal device, a first beam pair, wherein a first sub-beam of the network device and the first beam of the terminal device form the first beam pair; sending, by the terminal device, attribute information of the first sub-beam of the network device to the network device via the first beam of the terminal device; establishing, by the terminal device, a first connection to the first sub-beam of the network device via the first beam of the terminal device; measuring, by the terminal device, a plurality of beams of the network device which are in an unconnected state to obtain measurement results; and based on the measurement results, replacing, by the terminal device, the first connection with a second connection to the network device via a second beam pair, wherein replacing the first connection with the second connection comprises deleting the first connection and adding the second connection, and wherein replacing the first connection with the second connection is further based on a quantity of beam connections of the terminal device having reached a maximum beam connection threshold.
2. The method according to claim 1 , wherein before establishing the first connection, the method further comprises: sending, by the terminal device, attribute information of the plurality of sub-beams to the network device via the first beam of the terminal device.
3. The method according to claim 1 , wherein before establishing the first connection, the method further comprises: sending, by the terminal device, an uplink reference signal to the network device via the first beam of the terminal device.
4. The method according to claim 3 , wherein the method further comprises: receiving, by the terminal device via the first beam of the terminal device, a first message from the network device, wherein the first message comprises uplink reference signal resource information and first indication information, wherein the first indication information indicates an uplink reference signal resource used by one or more beams of the terminal device; and wherein sending the uplink reference signal to the network device is based on the uplink reference signal resource information and the first indication information.
5. The method according to claim 1 , wherein measuring the plurality of beams of the network device is based on reference signals received by the terminal device via the plurality of beams of the network device.
6. The method according to claim 1 , wherein measuring the plurality of beams of the network device is performed periodically.
7. The method according to claim 1 , wherein after replacing the first connection with the second connection, the terminal device no longer listens for downlink messages from the network device on the first connection and instead listens for downlink messages from the network device on the second connection.
8. A beam-based multi-connection communication method, comprising: sending, by a network device, downlink reference signals to a terminal device via a plurality of sub-beams of the network device; receiving, by the network device via a first beam of the terminal device, attribute information of a first sub-beam of the network device from the terminal device; and determining, by the network device, the first sub-beam of the network device based on the attribute information of the first sub-beam; establishing, by the network device, a first connection to the first beam of the terminal device via the first sub-beam of the network device, wherein the first sub-beam of the network device and the first beam of the terminal device form a first beam pair; sending, by the network device, a reference signal to the terminal device via each of a plurality of beams of the network device; receiving, by the network device, a message from the terminal device, wherein the message includes identification information of the terminal device and beam connection establishment request information; and replacing, by the network device, the first connection with a second connection to the network device via a second beam pair, wherein replacing the first connection with the second connection comprises deleting the first connection and adding the second connection, and wherein replacing the first connection with the second connection is based on a quantity of beam connections of the terminal device having reached a maximum beam connection threshold.
9. The method according to claim 8 , wherein before establishing the first connection, the method further comprises: receiving, by the network device via the first beam of the terminal device, an uplink reference signal from the terminal device; and determining, by the network device, the first beam pair based on the uplink reference signal.
10. The method according to claim 9 , wherein the method further comprises: sending, by the network device, a first message to the terminal device via the first beam of the terminal device, wherein the first message comprises uplink reference signal resource information and first indication information, wherein the first indication information indicates an uplink reference signal resource used by one or more beams of the terminal device; and wherein receiving the uplink reference signal from the terminal device is based on the uplink reference signal resource information and the first indication information.
11. The method according to claim 10 , wherein before sending the first message to the terminal device, the method further comprises: allocating, by the network device, at least one uplink reference signal resource to the terminal device that has a multi-beam connection.
12. The method according to claim 8 , wherein before establishing the first connection, the method further comprises: receiving, by the network device via the first beam of the terminal device, attribute information of the plurality of sub-beams of the network device from the terminal device.
13. A terminal device, comprising a processor and a non-transitory memory having processor-executable instructions stored thereon, wherein the processor is configured to execute the processor-executable instructions to facilitate the following being performed by the terminal device: receiving, via a first beam of the terminal device and a plurality of sub-beams of a network device, downlink reference signals from the network device; measuring signal quality of the plurality of sub-beams of the network device based on the downlink reference signals; based on measuring the signal quality of the plurality of sub-beams of the network device, determining a first beam pair, wherein a first sub-beam of the network device and the first beam of the terminal device form the first beam pair; sending attribute information of the first sub-beam of the network device to the network device via the first beam of the terminal device; establishing a first connection to the first sub-beam of the network device via the first beam of the terminal device; measuring a plurality of beams of the network device which are in an unconnected state to obtain measurement results; and based on the measurement results, replacing the first connection with a second connection to the network device via a second beam pair, wherein replacing the first connection with the second connection comprises deleting the first connection and adding the second connection, and wherein replacing the first connection with the second connection is further based on a quantity of beam connections of the terminal device having reached a maximum beam connection threshold.
14. The terminal device according to claim 13 , wherein the processor is further configured to execute the processor-executable instructions to facilitate the following being performed by the terminal device: sending attribute information of the plurality of sub-beams to the network device.
15. The terminal device according to claim 13 , wherein the processor is further configured to execute the processor-executable instructions to facilitate the following being performed by the terminal device: before establishing the first connection, sending an uplink reference signal to the network device via the first beam.
16. The terminal device according to claim 15 , wherein the processor is further configured to execute the processor-executable instructions to facilitate the following being performed by the terminal device: receiving, via the first beam, a first message from the network device, wherein the first message comprises uplink reference signal resource information and first indication information, wherein the first indication information indicates an uplink reference signal resource used by one or more beams of the terminal device; and wherein sending the uplink reference signal to the network device is based on the uplink reference signal resource information and the first indication information.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
May 1, 2019
April 6, 2021
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